Relationship between jointed slab and void of elastic foundation and acoustic features of resonator is studied by acoustic vibration. The vibration frequencies of jointed slab with or without void are calculated and analyzed by finite element method(FEM).

• 采用声振法研究接缝和弹性地基脱空与声学特征变化的关系,利用有限元方法分析了有、无脱空接缝板的振动频率。